ZyXEL Communications XGS-4728F manual 396

Chapter 50 Product Specifications

Table 148 Firmware Specifications

FEATURE	DESCRIPTION
IP Multicast	With IP multicast, the Switch delivers IP packets to a group of
	hosts on the network - not everybody. In addition, the Switch
	can send packets to Ethernet devices that are not VLAN-aware
	by untagging (removing the VLAN tags) IP multicast packets.
RIP	RIP (Routing Information Protocol) allows a routing device to
	exchange routing information with other routers.
OSPF	OSPF (Open Shortest Path First) is a link-state protocol
	designed to distribute routing information within an
	autonomous system (AS). An autonomous system is a
	collection of networks using a common routing protocol to
	exchange routing information. OSPF is best suited for large
	networks.
DVMRP	DVMRP (Distance Vector Multicast Routing Protocol) is a
	protocol used for routing multicast data within an autonomous
	system (AS). DVMRP provides multicast forwarding capability
	to a layer 3 switch that runs both the IPv4 protocol (with IP
	Multicast support) and the IGMP protocol.
VRRP	Virtual Router Redundancy Protocol (VRRP), defined in RFC
	2338, allows you to create redundant backup gateways to
	ensure that the default gateway of a host is always available.
STP (Spanning Tree	(R)STP detects and breaks network loops and provides backup
Protocol) / RSTP (Rapid	links between switches, bridges or routers. It allows a Switch to
STP)	interact with other (R)STP -compliant switches in your network
	to ensure that only one path exists between any two stations
	on the network.
Loop Guard	Use the loop guard feature to protect against network loops on
	the edge of your network.
IP Source Guard	Use IP source guard to filter unauthorized DHCP and ARP
	packets in your network.
Link Aggregation	Link aggregation (trunking) is the grouping of physical ports
	into one logical higher-capacity link. You may want to trunk
	ports if for example, it is cheaper to use multiple lower-speed
	links than to under-utilize a high-speed, but more costly,
	single-port link.
Port Authentication and	For security, the Switch allows authentication using IEEE
Security	802.1x with an external RADIUS server and port security that
	allows only packets with dynamically learned MAC addresses
	and/or configured static MAC addresses to pass through a port
	on the Switch.
Authentication and	The Switch supports authentication and accounting services via
Accounting	RADIUS and TACACS+ AAA servers.
Device Management	Use the web configurator or commands to easily configure the
	rich range of features on the Switch.
Port Cloning	Use the port cloning feature to copy the settings you configure
	on one port to another port or ports.
Syslog	The Switch can generate syslog messages and send it to a
	syslog server.

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	XGS-4728F User’s Guide